Abstract

Stretched gold island films with large optical anisotropy are demonstrated for the first time to our knowledge. The resonance absorption wavelength for polarization parallel to the stretching direction shifted from 0.54 to 0.95 μm by stretching a 9-nm-thick gold island film by five times, whereas the resonance wavelength shifted slightly to the shorter wavelength for perpendicular polarization. The origin of optical anisotropy is shown to come from an elongated island shape. Embedding of island films in a glass film is also shown to be necessary to produce the anisotropy in the stretching process.

© 1992 Optical Society of America

Ultrathin polarizing films for the near-infrared region consisting of stacked anisotropic gold island films

Makoto Takakuwa, Kazutaka Baba, and Mitsunobu Miyagi
Opt. Lett. 21(15) 1195-1197 (1996)

Optical characteristics of stretched silver island multilayers for submicrometer-thick optical polarizing films

Kazutaka Baba, Kizuku Yamaki, and Mitsunobu Miyagi
Appl. Opt. 38(12) 2564-2569 (1999)

Optical polarizer using anisotropic metallic island films with a large aperture and a high extinction ratio

Kazutaka Baba and Mitsunobu Miyagi
Opt. Lett. 16(12) 964-966 (1991)

Simulation and experimental investigation of optical transparency in gold island films

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Opt. Express 21(4) 4126-4138 (2013)

Anisotropic optical media from laminated island films: theory

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J. Opt. Soc. Am. A 8(4) 619-624 (1991)